We booked the Fantaseas glass bottom boat tour. Two young men ran the tour, and I noticed they were very carefully helping older guests with physical limitations to their seats. There was the usual tour guide banter, but they both appeared to be knowledgeable about the area and what they spoke about. My son had a number of questions, once we were looking at the fish and coral, and they answered him thoughtfully. I didn't have high expectations for the excursion, but it was a fun and informative afternoon, and I was glad we took the time to go.